Abstract：Consistent with the method of separately testing hydraulic performance of inlet conduit,a new method to separately calculate hydraulic performance of inlet conduit is put forward.Problems relative to the numerical simulation,such as calculation region,boundary conditions,grid generation etc.are introduced.Examples about the flow pattern simulation and hydraulic loss calculation of 3 types of inlet conduit,including elbow inlet,bell-like inlet and dustpan-like inlet are illustrated.Numerical calculation results are compared with those from model tests.The results indicate that the method of 3-D numerical calculation can calculate the hydraulic loss of inlet conduit with good accuracy and the loss can be verified conveniently by model test.Furthermore,the method could be applied to examine and evaluate the hydraulic performance of inlet conduit,which will create a necessary condition for the hydraulic optimum design with multi-plans.
陆林广；徐磊；梁金栋；刘军；黄金军. 泵站进水流道三维流动及水力损失数值模拟[J]. 排灌机械工程学报, 2008, 26(5): 55-58.
LU Lin-guang, XU Lei, LIANG Jin-dong, LIU Jun, HUANG Jin-jun. Numerical simulation for 3D turbulent flow and hydraulic loss of inlet conduit for pumping station. Journal of Drainage and Irrigation Machinery Engin, 2008, 26(5): 55-58.
[1] 陆林广,冷豫,吴开平.泵站进水流道内部流态模型试验方法研究[J].排灌机械,2005,23(3):17-19[2] 陆林广,陈阿萍,黄金军.低扬程立式泵进水流道基本流态及水力性能的比较[J].南水北调与水利科技,2007,5(5):135-138[3] 陆林广,祝婕,冷豫.泵站进水流道模型水力损失的测试[J].排灌机械,2005,23(4):14-17[4] 王福军,黎耀军,王文娥.水泵CFD应用中的若干问题与思考[J].排灌机械,2005,23(5):1-10[5] Launder B E,Spalding D B.The numerical calculation of turbulence flows[J].Computer Methods in Applied Mechanics and Engineering,1974(3):269-289[6] Shyy W,Braaten M E.Three-dimensional analysis of the flow in a curved hydraulic turbine draft tube[J].International Journal for Numerical Methods in Fluids,1986(6):861-882[7] Lakehal D,Theodoridis G S,Rodi W.Three-dimensio nal flow and heat transfer calculations of film cooling at the leading edge of a symmetrical turbine blade model[J].International Journal of Heat and Fluid Flow,2001(22):113-122[8] LI Yaojun,WANG Fujun.Numerical investigation of performance of an axial-flow pump with inducer[J].Journal of Hydrodynamics Series B,2007,19(6):705-711[9] Rodi W.Turbulence Models and Their Application in Hydraulics Experimental and Mathematical Fluid Dynamics[M].Delft:IAHR Section on Fundamentals of Division,1980:44-46[10] 陆林广,张仁田.泵站进水流道优化设计[M].北京:中国水利水电出版社,1997:18-19
